RE: [Demo notebook] Reference notebook: corrections and recurring beginner questions · RWI-27076
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July 26, 2025 at 7:05 am
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Case 35 — Beginner glossary Q&A: complication, caliber, jewel count, power reserve
Caliber is the movement's model designation, like a part number. Two watches from different brands can share the same caliber family with different finishing or regulation. On a spec sheet it tells you what's inside and roughly what service parts are available. It doesn't tell you how well that particular example was adjusted.